It is shown that a phase variation of the nucleon-nucleon elastic scattering amplitude leads to a large increase in the calculated differential cross-section and a substantial improvement.
计算结果表明核子-核子弹性散射的位相变化使理论微分截面增大，改进了理论值与实验数据的符合。
The importance of the virtual excitation in calculating the differential cross section of the elastic is discussed.
发现在弹性散射中虚激发的贡献是重要的。
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